Aram Sargsyan c7f79a0353 Add a quota for SIG(0) signature checks ... In order to protect from a malicious DNS client that sends many queries with a SIG(0)-signed message, add a quota of simultaneously running SIG(0) checks. This protection can only help when named is using more than one worker threads. For example, if named is running with the '-n 4' option, and 'sig0checks-quota 2;' is used, then named will make sure to not use more than 2 workers for the SIG(0) signature checks in parallel, thus leaving the other workers to serve the remaining clients which do not use SIG(0)-signed messages. That limitation is going to change when SIG(0) signature checks are offloaded to "slow" threads in a future commit. The 'sig0checks-quota-exempt' ACL option can be used to exempt certain clients from the quota requirements using their IP or network addresses. The 'sig0checks-quota-maxwait-ms' option is used to define a maximum amount of time for named to wait for a quota to appear. If during that time no new quota becomes available, named will answer to the client with DNS_R_REFUSED.		2024-06-10 17:33:08 +02:00
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dns.c	Pass a memory context in to dns_cache_create	2024-05-31 15:40:32 +10:00
isc.c	Always initialize the workers in the libtest	2023-04-21 09:04:24 +02:00
Makefile.am	Get the tests working with liburcu	2023-05-12 20:48:31 +01:00
ns.c	Add a quota for SIG(0) signature checks	2024-06-10 17:33:08 +02:00
qp.c	add a test method to print QP keys	2024-04-30 15:58:17 -07:00